Self-cleaning method of cleaning equipment and cleaning equipment

Abstract

The invention provides a self-cleaning method of cleaning equipment and the cleaning equipment. The cleaning equipment comprises a dirt suction assembly and a control device, the dirt suction assembly comprises a sewage tank used for recycling dirt, a dirt suction pipeline communicated with the sewage tank and a suction device acting on the dirt suction pipeline, and the control device can control the suction device to generate negative pressure suction force in the dirt suction pipeline so as to suck the dirt into the sewage tank through the dirt suction pipeline. The self-cleaning method comprises the steps that in response to starting operation of a self-cleaning mode, the self-cleaning mode is executed; and under the condition that the self-cleaning mode indicates that the sewage suction pipeline is self-cleaned, the suction device is controlled to be started and alternately operates at first power and second power smaller than the first power, and cleaning liquid used for cleaning the sewage suction pipeline forms surge in the sewage suction pipeline. According to the self-cleaning method of the cleaning equipment, the dirt suction pipeline of the cleaning equipment can be self-cleaned, the service life of the cleaning equipment is prolonged, and the user satisfaction degree is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of cleaning equipment, and in particular to a self-cleaning method for cleaning equipment and a cleaning equipment. Background Art

[0002] With the development of science and technology and social progress, more and more families have begun to use cleaning equipment such as vacuum cleaners, fabric cleaning machines, carpet cleaning machines, sweepers or floor scrubbers to improve the efficiency and quality of household hygiene cleaning.

[0003] Generally, the cleaning equipment in the related art has a sewage suction pipe for recovering dirt, but the sewage suction pipe in the related art is easy to breed bacteria and produce odor, and even get blocked, which affects the normal use of the cleaning equipment and leads to poor user experience. Summary of the invention

[0004] The present invention provides a self-cleaning method for cleaning equipment and cleaning equipment, which can self-clean a sewage suction pipe of the cleaning equipment, extend the service life of the cleaning equipment, and improve user satisfaction.

[0005] Specifically, the present disclosure is achieved through the following technical solutions:

[0006] According to a first aspect of an embodiment of the present disclosure, the present disclosure provides a self-cleaning method for a cleaning device, the cleaning device comprising a sewage suction component and a control device, the sewage suction component comprising a sewage tank for recovering dirt, a sewage suction pipe connected to the sewage tank, and a suction device acting on the sewage suction pipe, the control device being able to control the suction device to generate negative pressure suction in the sewage suction pipe to suck dirt into the sewage tank through the sewage suction pipe. The self-cleaning method comprises: in response to a start-up operation of the self-cleaning mode, executing the self-cleaning mode; when the self-cleaning mode indicates that the sewage suction pipe is to be self-cleaned, controlling the suction device to start and alternately operate with a first power and a second power, so that a cleaning liquid used to clean the sewage suction pipe forms a surge in the sewage suction pipe, and the second power is less than the first power.

[0007] According to a second aspect of an embodiment of the present disclosure, the present disclosure provides a self-cleaning method for a cleaning device, the cleaning device comprising a sewage suction component and a control device, the sewage suction component comprising a sewage tank for recovering dirt, a sewage suction pipe connected to the sewage tank, and a suction device acting on the sewage suction pipe, the control device can control the suction device to generate negative pressure suction in the sewage suction pipe, so as to suck the dirt into the sewage tank through the sewage suction pipe. The self-cleaning method comprises: in response to the start-up operation of the self-cleaning mode, executing the self-cleaning mode; when the self-cleaning mode indicates self-cleaning of the sewage suction pipe, controlling the suction device to start and alternately operate with a first power and a second power, so that the cleaning liquid used to clean the sewage suction pipe forms a surge in the sewage suction pipe. Wherein, the second power is less than the first power, the first power of the suction device is less than the sewage suction power, and the sewage suction power is the minimum power of the suction device to suck the cleaning liquid into the sewage tank.

[0008] According to a third aspect of an embodiment of the present disclosure, the present disclosure provides a cleaning device, including a dirt suction component and a control device, the control device being used to implement any of the above self-cleaning methods. The dirt suction component includes a sewage tank for recovering dirt, a dirt suction pipe connected to the sewage tank, and a suction device acting on the dirt suction pipe, the control device being able to control the suction device to generate negative pressure suction in the dirt suction pipe to suck the dirt into the sewage tank through the dirt suction pipe.

[0009] The technical solution provided by the embodiments of the present application includes at least the following beneficial effects:

[0010] The cleaning device provided in the present application can use the negative pressure suction of the sewage suction component to make the cleaning liquid flow through the sewage suction pipe. When the cleaning device performs a self-cleaning operation, the suction device can alternately operate the first power and the second power. Among them, the negative pressure suction generated when the suction device operates the first power is greater than the negative pressure suction generated when it operates the second power. Therefore, when the suction device alternately operates the first power and the second power, the suction device can alternately suck the cleaning liquid into the sewage suction pipe with two different negative pressure suctions, so that the cleaning liquid is reciprocated in the sewage suction pipe to form a surge, so that the fluctuation of the surge can be used to increase the impact force on the inner wall of the sewage suction pipe and to reciprocately flush the inner wall of the sewage suction pipe.

[0011] In this way, the cleaning liquid forms a surge in the sewage suction pipe, which can flush away the residual dirt attached to the sewage suction pipe, thereby realizing self-cleaning of the sewage suction pipe, avoiding the growth of bacteria, generation of odor and blockage in the sewage suction pipe, thereby extending the service life of the cleaning equipment and improving the user experience.

[0012] In addition, the cleaning equipment provided in this application is not limited to cleaning equipment such as floor scrubbers, fabric cleaning machines or carpet cleaning machines, and this application does not impose any restrictions. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] BRIEF DESCRIPTION OF THE DRAWINGS The drawings constituting a part of the present disclosure are used to provide a further understanding of the present disclosure. The illustrative embodiments of the present disclosure and the description thereof are used to explain the present disclosure and do not constitute an improper limitation on the present disclosure.

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a schematic diagram of the structure of a cleaning device shown in one embodiment of the present application.

[0016] Figure 2 for Figure 1 A schematic structural diagram of the assembly of a housing component and a cleaning brush of a cleaning device is shown.

[0017] Figure 3 A schematic diagram of the internal structure of the cleaning device provided in the present application in one embodiment.

[0018] Figure 4 for Figure 3 The schematic diagram of the structural principle of the cleaning device executing the cleaning mode is shown.

[0019] Figure 5 A schematic diagram of the internal structure of the cleaning device provided in the present application in another embodiment.

[0020] Figure 6 for Figure 5 The schematic diagram of the structural principle of the cleaning device executing the cleaning mode is shown.

[0021] Reference numerals:

[0022] 1-cleaning equipment; 10-cleaning brush device; 11-water pump; 12-cleaning liquid pump; 13-air pump; 14-connecting assembly; 141-first reversing valve; 142-pipe connector; 143-second reversing valve; 144-first connecting piece; 145-second connecting piece; 15-first output assembly; 16-foam generator; 17-second output assembly; 18-cleaning brush; 19-housing assembly; 20-host; 30-sewage tank; 40-cleaning liquid tank; 50-clean water tank; 60-base station; 61-cleaning tank. DETAILED DESCRIPTION

[0023] Here, the technical solutions in the embodiments (or "implementations") of the present disclosure will be described clearly and completely in conjunction with the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0024] If there are terms related to directional indications or positional relationships in the embodiments of the present disclosure (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, height, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first", "second", etc. in the embodiments of the present disclosure are only used for the purpose of convenience of description and cannot be understood as indicating or implying relative importance.

[0025] With the development of science and technology and social progress, more and more families are beginning to use cleaning equipment such as fabric cleaning machines, carpet cleaning machines or floor scrubbers to improve the efficiency and quality of household cleaning. Currently, there are many brands of cleaning equipment available for consumers to choose from on the market. How to win the favor of consumers and improve product competitiveness is an issue that cleaning equipment manufacturers are paying more and more attention to.

[0026] Take a floor scrubber as an example. A floor scrubber is a common cleaning device. Users can move the handheld floor scrubber on the ground and use the floor brush of the floor scrubber to clean the dirt on the ground. Usually, there are different degrees of dirt on the ground, including light dirt that is easy to clean, such as dust, hair or sweat stains, and stubborn dirt that is difficult to clean, such as oil stains, scale or mold. After the user uses the floor scrubber to clean these dirt, the floor brush of the floor scrubber needs to be cleaned to avoid residual dirt on the floor brush and the breeding of bacteria.

[0027] In the related art, in order to improve the user experience of the floor scrubber, the floor scrubber in the related art usually has a self-cleaning function, that is, the floor scrubber can drive clean water to flush the floor brush through a water pump, and then use negative pressure suction to suck the sewage used to clean the floor brush into the sewage tank, so as to realize automatic cleaning of the floor brush, thereby reducing the user's cleaning pressure on the floor brush.

[0028] However, in the related art, the sewage suction pipe used to suck the sewage from cleaning the floor brush into the sewage tank usually includes a corrugated pipe section and a multi-directional bending pipe section, resulting in a complex internal structure of the sewage suction pipe. Therefore, during the self-cleaning process of the floor brush, when the sewage flows through the sewage suction pipe into the sewage tank, the solid particles in the sewage are likely to remain and adhere to the inner wall of the sewage suction pipe. Long-term accumulation will cause bacteria to grow in the sewage suction pipe and produce odor, and even cause the sewage suction pipe to be blocked, affecting the normal use of the cleaning equipment.

[0029] Based on this, the present application provides a self-cleaning method for cleaning equipment, which can also self-clean the sewage suction pipe of the cleaning equipment, thereby improving the problems of bacteria breeding, odor generation and pipe blockage in the sewage suction pipe, thereby reducing the maintenance frequency of the cleaning equipment and extending its service life, thereby improving the user experience.

[0030] To facilitate understanding of the control method of the cleaning device provided in the present application, the cleaning device provided in the present application will be described below in conjunction with the accompanying drawings.

[0031] See also Figures 1 to 3 The present application provides a cleaning device 1, including a sewage suction component and a control device. The sewage suction component includes a sewage tank 30 for recovering dirt, a sewage suction pipe connected to the sewage tank 30, and a suction device acting on the sewage suction pipe. The control device can control the suction device to generate negative pressure suction in the sewage suction pipe to suck the dirt into the sewage tank 30 through the sewage suction pipe.

[0032] It should be noted that the cleaning device 1 includes a host 20 and a base station 60 that can be used in conjunction with the host 20. The host 20 is equipped with a cleaning brush device 10, a dirt suction component, a clean water tank 50, and a conveying component for conveying a cleaning medium.

[0033] The host 20 can be docked with the base station 60 or separated from the base station 60. When the host 20 is separated from the base station 60, the host 20 can carry the cleaning brush 18 away from the base station 60 to perform cleaning operations on the cleaning surface, such as sweeping the floor, including vacuuming, sweeping and mopping. As an example, when the cleaning device 1 is cleaning dirt, the cleaning device 1 can use the cleaning brush 18 to wipe the dirt, or the cleaning device 1 can start the suction device, and use the negative pressure suction force generated by the suction device to suck the liquid dirt and / or solid dirt on the cleaning surface into the suction pipe and recover it to the sewage tank 30.

[0034] When the host 20 is docked with the base station 60, the base station 60 can be used to connect to an external power adapter, and the power supply is electrically connected through the power adapter. The base station 60 can be used as a charging device for the host 20 to charge the host 20. In addition, the base station 60 also has a cleaning tank 61. When the host 20 is docked with the base station 60, the cleaning brush 18 of the host 20 can be placed in the cleaning tank 61 of the base station 60. In this way, the base station 60 can also communicate with the host 20 and maintain the host 20 according to the operation instructions of the host 20, such as self-cleaning the host 20, drying the cleaning brush device 10, spraying cleaning and automatic draining of the sewage tank 30, and automatically replenishing the clean water tank 50 of the host 20.

[0035] When the cleaning device 1 performs self-cleaning on the cleaning brush 18, the cleaning brush 18 of the cleaning device 1 is placed in the cleaning tank 61 of the base station 60, and the host 20 can control the conveying component to output liquid cleaning liquid such as clean water and / or cleaning liquid to the cleaning brush 18, and the cleaning liquid can be stored in the cleaning tank 61 after passing through the cleaning brush 18. During the self-cleaning process of the cleaning brush 18, the dirt suction component can suck the cleaning liquid in the cleaning tank 61 into the sewage tank 30 to prevent the cleaning liquid in the cleaning tank 61 from overflowing. At the same time, during the process of the dirt suction component absorbing the cleaning liquid, the cleaning device 1 can also use the cleaning liquid to self-clean the sewage suction pipe to avoid the residual dirt in the sewage suction pipe from causing bacteria, odor or blockage.

[0036] See also Figures 1 to 3 In some embodiments, the cleaning device 1 further includes a connecting component 14 connected to the conveying component and at least one output component connected to the connecting component 14 , and the control device can control the conveying component to convey the cleaning medium to the at least one output component via the connecting component 14 .

[0037] It should be noted that at least one output component is used to output a corresponding cleaning medium to clean dirt. The conveying component is used to deliver a cleaning medium to at least one output component. The cleaning medium may include one or a combination of clean water, cleaning liquid and gas, which is not limited in this application. The connecting component 14 is used to distribute the flow direction and flow rate of the cleaning medium delivered by the conveying component. The control device can control the start of the conveying component and control the connection component 14 to be connected with at least one output component according to the control instruction executed by the cleaning device 1, so that at least one output component can output the corresponding cleaning medium.

[0038] It is understandable that the delivery assembly may include a clean water delivery pipeline, a cleaning liquid delivery pipeline and a gas delivery pipeline connected to the connecting assembly 14, and each delivery pipeline is not shown in the figure. The control device can control at least one of the delivery pipelines to be in an open state, so that at least one output assembly can output the corresponding cleaning medium. At the same time, in order to facilitate the delivery of the cleaning medium, the delivery assembly may include a water pump 11 acting on the clean water delivery pipeline, a cleaning liquid pump 12 acting on the cleaning liquid delivery pipeline, and an air pump 13 acting on the gas delivery pipeline. Of course, in other embodiments, the clean water delivery pipeline can also be connected to an external faucet pipeline to provide delivery power, which is not limited in this application.

[0039] It can be understood that the connection assembly 14 may include a pipe connector 142 connected to the delivery assembly, a connecting pipe connected between the pipe connector 142 and the output assembly, and a control valve acting on the connecting pipe. The control valve may be a reversing valve, a stop valve, a pressure valve, or a flow valve, etc., which is not limited in this application.

[0040] In this way, the cleaning device 1 provided in the present application can make at least one output component output one or a combination of clean water, cleaning liquid and gas according to the control instruction. For example, at least one output component can output clean water, cleaning liquid, gas, a mixture of clean water and cleaning liquid, bubble water mixed with clean water and gas, foam mixed with cleaning liquid and gas, etc. In this way, the cleaning device 1 can provide output of multiple cleaning media to deal with cleaning different degrees of dirt.

[0041] See also Figure 2 and Figure 3 In some embodiments, at least one output component may include a first output component 15 and a second output component 17 connected to the connecting component 14, and the control device can control the connecting component 14 to conduct at least one of the first output component 15 and the second output component 17, so that the first output component 15 and the second output component 17 can output corresponding cleaning media.

[0042] With this arrangement, the first output component 15 and the second output component 17 can respectively output the same or different cleaning media, and the first output component 15 and the second output component 17 can be used in combination at the same time or used separately, so as to further enrich the use functions of the cleaning device 1.

[0043] See also Figure 3 In some embodiments, in order to enrich the foam output by the output component, the cleaning device 1 further includes a foam generator 16 , and the foam generator 16 is connected between the connecting component 14 and the first output component 15 .

[0044] It should be noted that, when the control device controls the first output component 15 to output foam, the cleaning liquid pump 12 and the air pump 13 are started, so that the gas and the cleaning liquid flow through the foam generator 16 and are fully mixed in the foam generator 16 to generate rich foam. It can be understood that the water pump 11 can also be started to mix the clean water, cleaning liquid and gas in the foam generator 16, and this application does not limit it.

[0045] In some embodiments, in order to avoid clogging of the first output component 15 due to crystals generated after the foam dries, the cleaning device 1 can start the water pump 11 to deliver clean water to the first output component 15, so as to use the water flow to flush the pipeline of the first output component 15 and wash away the crystals accumulated in the pipeline after the foam dries, thereby avoiding clogging of the first output component 15, allowing the cleaning device 1 to stably output the cleaning medium, thereby improving the operating stability and user satisfaction of the cleaning device 1.

[0046] In some embodiments, the cleaning device 1 also includes a shell component 19 and a cleaning brush 18 installed on the shell component 19, the cleaning brush 18 is used to perform cleaning operations on the cleaning surface, the first output component 15 is used to be set toward the cleaning surface, and the second output component 17 is set toward the cleaning brush 18.

[0047] In this way, when the cleaning device 1 controls the first output component 15 to output the cleaning medium, the first output component 15 can be used to directly spray the dirt on the cleaning surface, output the cleaning medium at a fixed point and / or a fixed quantity, and enable the user to perform spot spray cleaning on the local dirt or stubborn dirt on the cleaning surface, so that the cleaning device 1 has a spot spray mode. When the cleaning device 1 controls the second output component 17 to output the cleaning medium, the second output component 17 can be used to output the cleaning medium to the cleaning brush 18 to wet the cleaning brush 18, so that the user can use the cleaning brush 18 to perform daily general cleaning on a large area of ​​dirt on the cleaning surface, so that the cleaning device 1 has a general mode.

[0048] It can be understood that the first output component 15 includes a nozzle. In the spot spray mode, the spray range and spray force of the nozzle can be adjusted according to the user's use requirements, and this application does not set it. The second output component 17 includes a liquid spray plate, which is arranged along the length direction of the cleaning brush 18 and is provided with a plurality of nozzles or strip nozzles, so that the output cleaning medium can be in uniform contact with the cleaning brush 18.

[0049] It can be understood that the cleaning surface includes hard surfaces such as the floor or kitchen countertop, and the cleaning surface also includes soft surfaces such as carpets or sofas, and this application does not impose any limitation.

[0050] See also Figure 2 , Figure 3 and Figure 5 , Figure 2 It is a schematic structural diagram of a cleaning device 1 with two output components shown in an embodiment. Figure 3 for Figure 2 A schematic diagram of the internal structure of the cleaning device 1 is shown. Figure 5 for Figure 2 Another schematic diagram of the internal structure of the cleaning device 1 is shown. In some embodiments, the housing assembly 19 is provided with a receiving cavity, and the air pump 13, the cleaning liquid pump 12 and the water pump 11 of the cleaning device 1 can be installed in the receiving cavity of the housing assembly 19. The installation position of each pump body in the housing assembly 19 is not limited to Figure 3 and Figure 5 For the arrangement structure shown, the manufacturer can also adjust the installation position of each pump body and the delivery pipeline in the shell assembly 19 according to the actual assembly situation to form other arrangement structures, which is not limited in this application.

[0051] It can be understood that the water pump 11 is electrically connected to the control device, and the clean water delivered by the water pump 11 can be used to clean light dirt that is easy to clean, such as dust or sweat stains, and the clean water can also be used to self-clean the cleaning brush 18 of the cleaning device 1. Clean water can be uncontaminated natural water sources or domestic water such as groundwater or tap water. The cleaning liquid pump 12 is electrically connected to the control device, and the cleaning liquid delivered by the cleaning liquid pump 12 can be used to clean stubborn dirt such as oil stains, mold or scale. The cleaning liquid includes various cleaning liquids such as oil cleaning liquid, floor cleaning liquid, fabric cleaning liquid, carpet cleaning liquid, glass cleaning liquid, disinfecting cleaning liquid or mildew removal cleaning liquid, which are not limited in this application. The air pump 13 is electrically connected to the control device, and the gas delivered by the air pump 13 can be harmless gas such as air or nitrogen, which is not limited in this application. The gas can also be used to blow off the crystals accumulated on the output component after the liquid-containing cleaning medium is dried to prevent the output component from being blocked. The gas can also be used to blow dry the water marks after cleaning or blow dry the cleaning brush 18 of the cleaning device 1.

[0052] Taking the example below that the cleaning device 1 has two output components, namely, a first output component 15 and a second output component 17 , the present application provides two cleaning devices 1 with different structures.

[0053] See also Figure 3 and Figure 4 In example one, the connecting component 14 includes a first reversing valve 141 and a pipe connector 142. The first reversing valve 141 is provided with at least three working ports, and the at least three working ports include a first outlet connected to the first output component 15, a second outlet connected to the second output component 17, and an inlet selectively connected between the first outlet and the second outlet. The conveying component is connected to the inlet of the first reversing valve 141 through the pipe connector 142.

[0054] It should be noted that the pipe connector 142 is used to connect each delivery pipeline (such as a clean water delivery pipeline, a cleaning liquid delivery pipeline, and a gas delivery pipeline) in the delivery assembly to the inlet of the first reversing valve 141. When the output assembly outputs at least two of clean water, cleaning liquid, and gas, the pipe connector 142 can pre-mix at least two cleaning media before entering the corresponding output assembly. Among them, the connector includes a four-way pipe joint or two interconnected three-way pipe joints, which is not limited in this application.

[0055] In this way, in the spot spray mode, the inlet and the first outlet of the first reversing valve 141 are controlled to be connected, and at least one of the water pump 11, the cleaning liquid pump 12 and the air pump 13 is controlled to start, so that the first output component 15 can output one or a combination of clean water, cleaning liquid and gas.

[0056] In the general mode, the inlet and the second outlet of the first reversing valve 141 are controlled to be connected, and at least one of the water pump 11, the cleaning liquid pump 12 and the air pump 13 is controlled to start, so that the second output component 17 can output one or a combination of clean water, cleaning liquid and gas.

[0057] Of course, the cleaning device 1 can also enable the spot spray mode and the general mode at the same time. It only needs to control the inlet of the first reversing valve 141 to be connected to the first outlet and the second outlet, and control at least one of the water pump 11, the cleaning liquid pump 12 and the air pump 13 to start, so that the first output component 15 and the second output component 17 can output the cleaning medium at the same time.

[0058] See also Figure 5 and Figure 6 Example 2, the connection assembly 14 includes a second reversing valve 143, a first connecting member 144 and a second connecting member 145. The second reversing valve 143 is provided with at least three working ports, and the at least three working ports include a first outlet connected to the first connecting member 144, a second outlet connected to the second connecting member 145, and an inlet connected to the first outlet and the second outlet. The first output assembly 15 and the air pump 13 are respectively connected to the first connecting member 144, and the second output assembly 17 and the water pump 11 are respectively connected to the second connecting member 145.

[0059] It can be understood that the first connecting member 144 and the second connecting member 145 can be a three-way pipe connector 142, or a valve body such as a stop valve, a flow valve, etc., and the present application does not impose any limitation thereto.

[0060] It should be noted that Example 2 is different from Example 1 in that: in Example 2, only the cleaning liquid pump 12 is connected to the inlet of the second reversing valve 143, the air pump 13 and the first output assembly 15 are respectively connected to the first connecting member 144, and the water pump 11 and the second output assembly 17 are respectively connected to the second connecting member 145. In this way, the first output assembly 15 and the second output assembly 17 can be controlled to output the cleaning medium containing the cleaning liquid respectively through the second reversing valve 143. The air pump 13 can be directly connected to the first output assembly 15 without passing through the second reversing valve 143, and the water pump 11 can be directly connected to the second output assembly 17 without passing through the second reversing valve 143.

[0061] In this way, in the spot spray mode, the inlet of the second reversing valve 143 is controlled to be connected to the first outlet, the first connecting member 144 is opened and the second connecting member 145 is closed, and at least one of the water pump 11, the cleaning liquid pump 12 and the air pump 13 is controlled to start, so that the first output component 15 can output one or a combination of clean water, cleaning liquid and gas.

[0062] In the general mode, the inlet and the second outlet of the first reversing valve 141 are controlled to be connected, the first connecting member 144 is closed and the second connecting member 145 is opened, and at least one of the water pump 11, the cleaning liquid pump 12 and the air pump 13 is controlled to start, so that the second output component 17 can output one or a combination of clean water, cleaning liquid and gas.

[0063] Of course, the cleaning device 1 can also enable the spot spray mode and the general mode at the same time. It only needs to control the inlet of the first reversing valve 141 to be connected to the first outlet and the second outlet, the first connecting member 144 and the second connecting member 145 to be opened respectively, and control at least one of the water pump 11, the cleaning liquid pump 12 and the air pump 13 to start, so that the first output component 15 and the second output component 17 can output the cleaning medium at the same time.

[0064] It can be understood that the first reversing valve 141 and the second reversing valve 143 can be two-position three-way valves, three-position three-way valves, four-way valves or five-way valves, etc., and the present application does not impose any limitation thereto.

[0065] It can be understood that in some embodiments, in order to reduce pipeline connections, the foam generator 16 connected between the first outlet and the first output component 15 can be integrated with the first output component 15.

[0066] In addition, in other embodiments, the output components of the cleaning device 1 may be provided with only 1, 3, 4 or 5 output components, or any number required by the user, which is not limited in the present application.

[0067] See also Figures 1 to 3 In the following, the cleaning device 1 is a floor scrubber. The cleaning device 1 includes a base station 60 and a host 20. The host 20 includes a handle, a cleaning brush device 10, a clean water tank 50, and a cleaning liquid tank 40. The cleaning brush device 10 includes a housing assembly 19, a conveying assembly and a connecting assembly 14 disposed in the housing assembly 19, etc. The clean water tank 50 is connected to the water pump 11, and the cleaning liquid tank 40 is connected to the cleaning liquid pump 12.

[0068] It can be understood that the base station 60 can be used in conjunction with the host 20 to charge or maintain the host 20. The control device includes an operation button installed on the host 20 and a controller electrically connected to the operation button. The controller is electrically connected to the connection component 14 to switch the conduction state between the connection component 14 and at least one output component through the operation button, thereby switching the spot spray mode and the general mode of the floor scrubber. Of course, the controller can also be electrically connected to mobile devices such as mobile phones, computers or tablets, so that users can switch various cleaning modes through corresponding application software or application programs in mobile devices such as mobile phones, computers or tablets.

[0069] It can be understood that the cleaning device 1 provided in the present application is not limited to a floor scrubber, but may also include a sweeping robot, a vacuum cleaner, a carpet cleaning machine or a fabric cleaning machine, etc., and the present application does not impose any limitation thereto.

[0070] In addition to the above-mentioned cleaning device 1, the present application also provides a control method of the cleaning device 1, and the control method of the cleaning device 1 provided by the present application will be described below.

[0071] The control method provided in this application includes:

[0072] Step 1: In response to a start-up operation of a self-cleaning mode, the self-cleaning mode is executed.

[0073] Step 11: When the self-cleaning mode indicates to self-clean the sewage suction pipe, the suction device is controlled to start and operate alternately at a first power and a second power less than the first power, so that the cleaning liquid used to clean the sewage suction pipe forms a surge in the sewage suction pipe.

[0074] The cleaning device 1 includes a dirt suction component and a control device, the dirt suction component includes a sewage tank 30 for recovering dirt, a dirt suction pipe connected to the sewage tank 30, and a suction device acting on the dirt suction pipe, and the control device can control the suction device to generate negative pressure suction in the dirt suction pipe to suck the dirt into the sewage tank 30 through the dirt suction pipe. When the host 20 of the cleaning device 1 is docked with the base station 60, the cleaning device 1 can perform a self-cleaning operation.

[0075] It is understandable that the self-cleaning operation of the cleaning device 1 can be a signal generated spontaneously by the cleaning device 1. In one example, the self-cleaning operation can be a self-cleaning control signal generated according to the docking time between the host 20 and the base station 60 after the host 20 of the cleaning device 1 is docked with the base station 60. For example, the host 20 is set to self-clean the host 20 when the docking time with the base station 60 exceeds 2 minutes. In another example, the self-cleaning operation can also be a control signal generated by user operation. For example, the host 20 of the cleaning device 1 is provided with a self-cleaning button, and the user can operate the self-cleaning button to generate a start instruction to start the self-cleaning mode, and the user can generate a stop instruction to stop the self-cleaning mode by operating the self-cleaning button again. Of course, the self-cleaning operation can also be controlled and executed in other ways, such as the user controls the self-cleaning operation of the cleaning device 1 through a mobile phone or computer and other devices, and this application does not limit this.

[0076] It should be noted that, when the host 20 of the cleaning device 1 is docked with the base station 60, the suction component can use negative pressure suction to suck the cleaning liquid in the cleaning tank 61 in the base station 60 through the suction pipe into the sewage tank 30. Thus, the cleaning device 1 can use the cleaning liquid to self-clean the suction pipe to avoid residual dirt in the suction pipe, resulting in bacterial growth, odor or blockage.

[0077] Specifically, the suction device has a first power and a second power that is less than the first power, that is, the negative pressure suction force generated when the suction device operates at the first power is less than the negative pressure suction force generated when the suction device operates at the second power. Therefore, when the suction device alternately operates at the first power and the second power, the suction device can alternately suck the liquid in the cleaning tank 61 into the sewage suction pipe with two negative pressure suction forces of different sizes, so that the cleaning liquid in the cleaning tank 61 is reciprocated in the sewage suction pipe to form a surge, so that the fluctuation of the surge can be used to increase the impact force on the inner wall of the sewage suction pipe and to reciprocately flush the inner wall of the sewage suction pipe. In this way, the residual dirt attached to the sewage suction pipe can be flushed away by the cleaning liquid forming a surge in the sewage suction pipe, so as to achieve self-cleaning of the sewage suction pipe, avoid the growth of bacteria, the generation of odors and blockages in the sewage suction pipe, and thus extend the service life of the cleaning device 1 and enhance the user experience.

[0078] It is understandable that the suction device can be in the start-up state or in the off state when operating at the second power, and this application does not limit this. When the suction device is in the off state when operating at the second power, the negative pressure suction force of the suction device on the cleaning liquid disappears, and the cleaning liquid can also flow back into the cleaning tank 61, and then when the suction device is operating at the first power, it is sucked into the sewage suction pipe again to form a surge.

[0079] In some embodiments, the suction device also has a sewage suction power greater than the first power. The suction device can suck the cleaning liquid into the sewage suction pipe when it is operated at the first power or the second power, and can suck the cleaning liquid into the sewage tank 30 when it is operated at the sewage suction power. Controlling the suction device to start also includes: controlling the suction device to alternately operate at the first power and the second power until a first preset condition is met, and then controlling the suction device to operate at the sewage suction power so that the cleaning liquid is sucked into the sewage tank 30.

[0080] It can be understood that the first power of the suction device can be thirty percent to fifty percent of the sewage suction power, and the second power can be ten percent to twenty percent of the sewage suction power. The suction device can also be in a turned-off state when running at the second power. The present application does not impose any restrictions on this, and the first power and second power of the suction device can be adjusted according to the actual usage scenario.

[0081] In this way, when the cleaning device 1 performs self-cleaning on the sewage suction pipe, the cleaning liquid that has been flushed on the sewage suction pipe can be recovered into the sewage tank 30 to avoid the accumulation of cleaning liquid in the cleaning tank 61. In addition, the cleaning liquid is continuously injected into the cleaning tank 61 by the conveying component of the cleaning device 1, so that the cleaning liquid for self-cleaning the sewage suction pipe is always clean, which can further improve the cleaning strength of the sewage suction pipe.

[0082] In some embodiments, controlling the suction device to operate alternately at the first power and the second power until a first preset condition is satisfied includes at least one of the following:

[0083] (1) Control the suction device to repeatedly suck the cleaning liquid into the sewage suction pipe, and then suck it into the sewage tank 30 after reaching a preset number of times. For example, if the preset number of times is 2 times, the suction device needs to suck the liquid in the cleaning tank 61 into the sewage suction pipe and then discharge it into the cleaning tank 61, forming the first flushing. After that, the suction device needs to suck the liquid in the cleaning tank 61 into the sewage suction pipe again and then discharge it into the cleaning tank 61, forming the second flushing. Finally, the suction device directly sucks the liquid in the cleaning tank 61 into the sewage tank 30 through the sewage suction pipe to complete the self-cleaning of the sewage suction pipe. In this way, the cleaning intensity of the sewage suction pipe is improved by two reciprocating flushings. Of course, the preset number of times is not limited to 2 times, but can also be 3 times, 4 times or 5 times, etc., and this application is not limited thereto.

[0084] (2) Control the suction device to reciprocately suck the cleaning liquid into the sewage suction pipe, and then suck it into the sewage tank 30 after a preset time. For example, if the preset time is 5 minutes, the suction device needs to continuously suck the liquid in the cleaning tank 61 into the sewage suction pipe and then discharge it into the cleaning tank 61 within 5 minutes, so as to reciprocately clean the sewage suction pipe until the liquid in the cleaning tank 61 is sucked into the sewage tank 30 after 5 minutes of flushing.

[0085] (3) Control the suction device to suck the cleaning liquid into the sewage tank 30 according to the received closing signal. For example, the suction device can suck the liquid in the cleaning tank 61 into the sewage tank 30 after reciprocating flushing according to the key operation of the user.

[0086] In this way, when the cleaning device 1 performs self-cleaning on the sewage suction pipe, the cleaning liquid in the cleaning tank 61 can flow back and forth in the sewage suction pipe to flush the pipe, that is, the cleaning liquid can form at least two surge flushing on the sewage suction pipe, thereby enhancing the cleaning force on the sewage suction pipe.

[0087] In other embodiments, in order to facilitate the reciprocating flushing of the sewage suction pipe, the suction device can also be controlled to alternately run in forward and reverse directions. For example, when the suction device is running in the forward direction, the suction device generates a negative pressure suction force to suck the liquid in the cleaning tank 61 into the sewage suction pipe. When the suction device is running in the reverse direction, the suction device generates a positive pressure suction force to discharge the liquid in the cleaning tank 61 from the sewage suction pipe into the cleaning tank 61. In this way, the sewage suction pipe can also achieve reciprocating throughput of the cleaning liquid, thereby forming a reciprocating surge flushing. Conversely, when the suction device is running in the forward direction, a positive pressure suction force is generated, and when the suction device is running in the reverse direction, a negative pressure suction force is generated, which will not be elaborated in this application.

[0088] In some embodiments, the cleaning device 1 further includes a cleaning brush 18 for performing a cleaning operation on the cleaning surface, a first output component 15 for outputting a cleaning medium to the cleaning surface, a second output component 17 for outputting a cleaning medium to the cleaning brush 18, a connecting component 14 in communication with the first output component 15 and the second output component 17, and a conveying component in communication with the connecting component 14, wherein the conveying component includes a clean water conveying pipeline and a cleaning liquid conveying pipeline. In response to the start-up operation of the self-cleaning mode, the self-cleaning mode is executed, and at least one of the following is also included:

[0089] When the self-cleaning mode indicates that the first output assembly 15 is to be self-cleaned, the clean water delivery pipeline is controlled to be connected to the first output assembly 15 to deliver clean water to the first output assembly 15;

[0090] When the self-cleaning mode indicates to self-clean the cleaning brush 18 , at least one of the clean water delivery pipeline and the cleaning liquid delivery pipeline is controlled to be connected to the second output assembly 17 to deliver clean water and / or cleaning liquid to the second output assembly 17 .

[0091] With this arrangement, when the cleaning device 1 performs self-cleaning on the sewage suction pipe, at least one of the first output component 15 and the cleaning brush 18 can also be cleaned.

[0092] It can be understood that the first output component 15 can be used to output foam to directly hit the dirt on the cleaning surface, thereby increasing the dissolving power of the dirt. In order to avoid the first output component 15 from being blocked due to the crystallization of the foam drying after the foam is output, the cleaning device 1 provided in the present application can self-clean the first output component 15. Among them, when the self-cleaning mode indicates that the first output component 15 is to be self-cleaned, the control method can control the connection between the connecting component 14 and the first output component 15, and control the water pump 11 to start and deliver clean water to the first output component 15, and the clean water can be stored in the cleaning tank 61. In this way, the present application outputs clean water to the first output component 15, uses the water flow to flush the pipeline of the first output component 15 and flushes away the crystals accumulated in the pipeline after the foam dries, thereby avoiding the blockage of the first output component 15, enabling the cleaning device 1 to stably output the cleaning medium, and improving the operating stability and user satisfaction of the cleaning device 1.

[0093] When the cleaning device 1 self-cleans the cleaning brush 18, the water pump 11 can be connected to the second output component 17, so that clean water is output from the second output component 17 to rinse and soak the cleaning brush 18, and the clean water can be stored in the cleaning tank 61 of the base station 60. When it is necessary to increase the cleaning force of the cleaning brush 18, the control method can control the cleaning liquid pump 12 to start and be connected to the second output component 17 to output cleaning liquid to the cleaning brush 18 to further dissolve the dirt on the cleaning brush 18. Of course, when the cleaning liquid pump 12 is started, the air pump 13 can also be controlled to start and be connected to the second output component 17, so that the gas and the cleaning liquid are mixed to form foam and output to the cleaning brush 18, which is used to dissolve the dirt on the cleaning brush 18. This application does not limit this.

[0094] Of course, when the connecting component 14 simultaneously conducts the first output component 15 and the second output component 17, clean water can simultaneously rinse the first output component 15 and the cleaning brush 18 to perform self-cleaning on the first output component 15 and the cleaning brush 18 at the same time.

[0095] During the self-cleaning process of the first output component 15 and / or the cleaning brush 18, cleaning liquids such as clean water and / or cleaning liquid are continuously accumulated in the cleaning tank 61, and the sewage suction component can suck the cleaning liquid in the cleaning tank 61 into the sewage tank 30 through the sewage suction pipe. With this arrangement, on the one hand, the sewage suction pipe can be self-cleaned by the cleaning liquid, and on the other hand, the cleaning liquid in the cleaning tank 61 can be prevented from overflowing. In this way, the self-cleaning mode of the cleaning device 1 can simultaneously self-clean the first output component 15, the cleaning brush 18 and the sewage suction pipe to save energy. Of course, the self-cleaning of the first output component 15, the self-cleaning of the cleaning brush 18 and the self-cleaning of the sewage suction pipe can also be performed separately, and this application does not limit it.

[0096] In some embodiments, in order to further improve the cleaning force of the cleaning brush 18, the cleaning device 1 further includes a driving assembly for driving the cleaning brush 18 to rotate, the driving assembly having a first rotation speed and a second rotation speed less than the first rotation speed, and in the case where the self-cleaning mode indicates that the cleaning brush 18 is self-cleaned, at least one of the following is also included:

[0097] Control the driving assembly to rotate forward and alternately operate at a first speed and a second speed;

[0098] Control the driving component to reverse and alternately operate at a first speed and a second speed;

[0099] Controlling the driving component to rotate forward at one of the first speed and the second speed, and to rotate reversely at the other speed, and to rotate forward and reverse alternately;

[0100] The driving component is controlled to run at one of a first rotation speed and a second rotation speed and to rotate in forward and reverse directions alternately.

[0101] It should be noted that when the host 20 is cleaning dirt, the driving component drives the cleaning brush 18 to rotate and reciprocate to wipe the dirt to clean the dirt. After the host 20 is docked with the base station 60, the cleaning brush 18 is in the cleaning tank 61 of the base station 60. At this time, the driving component drives the cleaning brush 18 to rotate, so that the cleaning brush 18 can rub against the cleaning liquid in the cleaning tank 61, which can increase the contact area between the cleaning brush 18 and the cleaning liquid and the flushing force, thereby improving the cleaning force of the cleaning brush 18.

[0102] The driving assembly has a first rotation speed and a second rotation speed that is less than the first rotation speed, that is, the driving assembly drives the cleaning brush 18 to rotate faster at the first rotation speed than at the second rotation speed. Accordingly, the impact force of the cleaning brush 18 with the cleaning liquid at the first rotation speed is greater than the impact force of the cleaning brush 18 with the cleaning liquid at the second rotation speed.

[0103] In addition, the driving assembly can drive the cleaning brush 18 to rotate forward or reversely so that the cleaning brush 18 is in uniform contact with the cleaning liquid.

[0104] In this way, the driving assembly drives the cleaning brush 18 to rotate forward and reverse at different speeds, which can increase the impact force of the cleaning liquid and the cleaning brush 18 and the cleaning area, thereby improving the cleaning force of the cleaning brush 18.

[0105] It can be understood that the driving assembly includes a motor and a transmission mechanism connected between the motor and the cleaning brush 18. The transmission mechanism can be a gear mechanism, a connecting rod mechanism or a belt transmission mechanism, etc., and the present application does not limit this.

[0106] In some embodiments, to improve the cleaning effect, the cleaning device 1 further includes a heating component, and in response to the start-up operation of the self-cleaning mode, the self-cleaning mode is executed, and further includes: controlling the heating component to heat the cleaning liquid.

[0107] In this way, heating the cleaning medium with the heating component can accelerate the dissolution of dirt, which helps to improve the cleaning effect. It can be understood that the heating component includes a PTC heater or a heating wire, etc., and this application does not limit it.

[0108] After the host 20 of the cleaning device 1 is docked with the base station 60, a specific self-cleaning method will be provided below by taking the cleaning device 1 performing self-cleaning on the first output component 15, the sewage suction pipe and the cleaning brush 18 as an example:

[0109] In response to the self-cleaning start-up operation, the control connection component 14 is connected to the first output component 15, and the control water pump 11 is started. At this time, the water pump 11 outputs clean water to the first output component 15 to perform self-cleaning on the first output component 15. In the process of self-cleaning the first output component 15, the water flow is stored in the cleaning tank 61 of the base station 60. The suction device is controlled to start and run the sewage suction power, suck the liquid in the cleaning tank 61 into the sewage tank 30, perform preliminary self-cleaning on the sewage suction pipeline, and also prevent the liquid in the cleaning tank 61 from overflowing. Afterwards, the suction device is controlled to alternately run the first power and the second power, and the liquid in the cleaning tank 61 is reciprocally sucked into the sewage suction pipeline to form a surge, so as to perform the first surge flushing on the sewage suction pipeline. At the same time, since the suction device only sucks the liquid in the cleaning tank 61 into the sewage suction pipeline without sucking it into the sewage tank 30, the water flow output by the water pump 11 can gradually accumulate water in the cleaning tank 61, which can soak the cleaning brush 18. At this time, the driving component is controlled to drive the cleaning brush 18 to rotate, and the cleaning brush 18 can be self-cleaned synchronously. Then, the suction device is controlled to operate the sewage suction power to suck the liquid in the cleaning tank 61 into the sewage tank 30 to prevent the liquid from overflowing. After that, the suction device is controlled to alternately operate the first power and the second power to perform a second surge flushing on the sewage suction pipe, and the driving component is controlled to drive the cleaning brush 18 to alternately rotate forward and reverse to increase the cleaning force of the cleaning brush 18. At this time, at least one of the cleaning liquid pump 12 and the air pump 13 can be selected to start during the first surge flushing or the second surge flushing process, and is connected to the second output component 17 to output cleaning liquid or foam to the cleaning brush 18, thereby increasing the cleaning force. After that, the water pump 11 is controlled to stop to complete the self-cleaning of the first output component 15. The remaining liquid in the cleaning tank 61 of the base station 60 can continue to supply water for the self-cleaning of the sewage suction pipe and the cleaning brush 18. After the self-cleaning of the cleaning brush 18 is completed, the suction device is controlled to operate the sewage suction power to suck the remaining liquid in the cleaning tank 61 into the sewage tank 30 to complete the entire self-cleaning mode. It can be understood that the above control method is used as an example.

[0110] In some embodiments, the delivery component also includes a gas delivery pipeline connected to the connecting component 14, and executes the self-cleaning mode in response to the start-up operation of the self-cleaning mode. It also includes: controlling the gas delivery pipeline to open after the clean water delivery pipeline and / or the cleaning liquid delivery pipeline are closed, and to be connected to at least one of the first output component 15 and the second output component 17.

[0111] With this arrangement, on the one hand, the airflow can be used to dry the residual liquid in the first output component 15, so as to avoid the residual liquid flowing out of the first output component 15 when outputting foam or cleaning liquid, which affects the user experience. On the other hand, the airflow can also be used to impact the foam crystals that may not be washed away by clean water again, so as to achieve dual self-cleaning of the first output component 15 by water flow and airflow to avoid blockage. At the same time, the airflow can also be used to dry the cleaning brush 18, so that the cleaning brush 18 can be stored in a dry state, so as to avoid the cleaning brush 18 being in a wet state for a long time to breed bacteria and produce odor.

[0112] In some embodiments, the present application also provides a self-cleaning method of a cleaning device 1, comprising:

[0113] In response to a self-cleaning mode start-up operation, executing the self-cleaning mode;

[0114] When the self-cleaning mode indicates self-cleaning of the sewage suction pipe, the suction device is controlled to start and operate alternately with a first power and a second power which is less than the first power, so that the cleaning liquid used to clean the sewage suction pipe forms a surge in the sewage suction pipe; wherein the first power of the suction device is less than the suction power of the suction device used to suck the cleaning liquid into the sewage tank 30.

[0115] It should be noted that, unlike the aforementioned self-cleaning method, when the cleaning liquid forms a surge to flush the inner wall of the sewage suction pipe, the first power of the suction device is less than the sewage suction power. In this way, during the process of the cleaning liquid forming a surge, the cleaning liquid will not be sucked into the sewage tank 30 and then discharged into the sewage suction pipe, so as to prevent the dirt in the sewage tank 30 from being brought out to pollute the sewage suction pipe.

[0116] After the cleaning device 1 performs any of the above self-cleaning operations, the cleaning device 1 can perform a cleaning operation on the cleaning surface. Among them, the cleaning device 1 can provide multiple cleaning modes for dealing with dirt. In this way, the control device of the cleaning device 1 also has a control method for executing multiple cleaning modes, including:

[0117] Step 2: In response to the start-up operation of the cleaning mode, the cleaning mode is executed.

[0118] It can be understood that the cleaning device 1 includes a conveying component, a connecting component 14 connected to the conveying component, a first output component 15 and a second output component 17 communicated with the connecting component 14, the second output component 17 is used to be arranged toward the cleaning brush 18, and the first output component 15 is used to be arranged toward the cleaning surface of the cleaning brush 18 for performing a cleaning operation. The cleaning mode also includes a spot spray mode and a general mode, and step 2 also includes at least one of the following:

[0119] Step 21: When the cleaning mode indicates to start the spot spray mode, the connection component 14 is controlled to turn on the first output component 15 so that the first output component 15 can output a corresponding cleaning medium, which includes one or a combination of clean water, cleaning liquid and gas.

[0120] Step 22: When the cleaning mode indicates starting the general mode, the connecting component 14 is controlled to turn on the second output component 17 so that the second output component 17 can output a cleaning medium correspondingly, wherein the cleaning medium includes one or a combination of clean water, cleaning liquid and gas.

[0121] Step 23: When the cleaning mode indicates starting the spot spray mode and the general mode, the control connection component 14 is turned on the first output component 15 and the second output component 17, so that the first output component 15 and the second output component 17 can respectively output the cleaning medium, and the cleaning medium includes one or a combination of clean water, cleaning liquid and gas.

[0122] In some embodiments, when the cleaning device 1 is in the spot spray mode and / or the general mode, at least one of the water pump 11, the cleaning liquid pump 12 and the air pump 13 of the conveying assembly is controlled to be turned on, so that the cleaning device 1 can have different cleaning modes. The different cleaning modes of the cleaning device 1 will be described below.

[0123] In the spot spray mode, the first output component 15 outputs a cleaning medium. The cleaning medium includes one or a combination of clean water, cleaning liquid and gas. Thus, the cleaning mode of the cleaning device 1 includes at least one of a clean water mode, a cleaning liquid mode, a gas mode, a foam mode, a mixed liquid mode and a bubble water mode.

[0124] It should be noted that, in the spot spraying mode, the order of using the various cleaning modes of the cleaning device 1 is not limited in this application, and the user can choose according to actual needs. Among them, executing different cleaning modes in the spot spraying mode can correspond to different usage scenarios, as follows: When spot spraying clean water, light dirt on the cleaning surface can be cleaned, or the cleaning liquid crystals remaining in the first output component 15 can be cleaned by spot spraying clean water to prevent the first output component 15 from being blocked. When spot spraying a cleaning medium containing a cleaning liquid, such as a cleaning liquid, foam, and a mixed liquid, it can be used to clean stubborn dirt on the cleaning surface. When spot spraying gas, the water marks on the cleaning surface can be blown dry, or the cleaning liquid crystals remaining in the first output component 15 can be blown off by gas to prevent the first output component 15 from being blocked.

[0125] In the general mode, the second output component 17 outputs a cleaning medium. The cleaning medium includes one or a combination of clean water, cleaning liquid and gas. Thus, the cleaning mode of the cleaning device 1 includes at least one of a clean water mode, a cleaning liquid mode, a gas mode, a foam mode, a mixed liquid mode, and a bubble water mode.

[0126] It should be noted that, in the general mode, the order of using the various cleaning modes of the cleaning device 1 is not limited in this application, and the user can choose according to actual needs. Among them, executing different cleaning modes in the general mode can correspond to different usage scenarios, as follows:

[0127] If only the water pump 11 of the cleaning device 1 is started, and the cleaning liquid pump 12 and the air pump 13 are turned off, the second output component 17 can output clean water to the cleaning brush 18, and the cleaning device 1 is in the clean water mode. For example, the clean water mode can be used to soak the cleaning brush 18 with clean water to clean the light dirt on the floor or carpet to be cleaned. Alternatively, the clean water mode can also perform self-cleaning on the cleaning brush 18 of the cleaning device 1 itself to wash away the dirt on the cleaning brush 18. Alternatively, the clean water output in the clean water mode can also wash away the cleaning medium containing the cleaning liquid remaining in the pipeline of the second output component 17 to prevent the cleaning medium containing the cleaning liquid from forming crystals after drying, thereby avoiding clogging of the second output component 17.

[0128] If only the cleaning liquid pump 12 of the cleaning device 1 is started, and the water pump 11 and the air pump 13 are turned off, the second output component 17 can output cleaning liquid to the cleaning brush 18, and the cleaning device 1 is in the cleaning liquid mode, so as to enhance the cleaning power of the cleaning device 1 on the ground or carpet to be cleaned, or the cleaning power of the cleaning brush 18. Generally, the cleaning liquid has a certain fluidity. When the cleaning liquid is output to a relatively flat surface to be cleaned, such as the ground, glass or kitchen countertop, the cleaning liquid can flow on the surface of the liquid to be cleaned to dissolve and clean the dirt, which can not only improve the cleaning power, but also be suitable for cleaning large areas of stubborn dirt. When the cleaning liquid is output to the carpet or fabric to be cleaned, the cleaning liquid can also penetrate deep into the stains, dissolve stubborn stains, and thus enhance the cleaning power.

[0129] If the water pump 11 and the cleaning liquid pump 12 of the cleaning device 1 are both started, and the air pump 13 is turned off, the second output component 17 can output the mixed liquid to the cleaning brush 18, and the cleaning device 1 is in the mixed liquid mode. It can be understood that, compared with the cleaning liquid mode, the concentration of the cleaning liquid in the mixed liquid in the mixed liquid mode is lower than the concentration of the cleaning liquid in the cleaning liquid mode. It is equivalent to that the cleaning liquid is diluted with clean water to form a mixed liquid. The cleaning power of the mixed liquid mode is higher than that of the clean water mode and lower than that of the cleaning liquid mode. Users can choose to use the mixed liquid mode according to the degree of dirtiness or customized usage requirements, and this application does not impose any restrictions. In addition, through the mixed liquid mode, the cleaning power can be improved compared to the clean water mode, and the amount of cleaning liquid can be saved compared to the cleaning liquid mode.

[0130] If the water pump 11 and the air pump 13 of the cleaning device 1 are started, and the cleaning liquid pump 12 is turned off, the second output component 17 can evenly output bubble water to the cleaning brush 18, and the cleaning device 1 is in the bubble water mode. It can be understood that the bubble water mode allows the clean water to be sprayed evenly, which can avoid uneven cleaning of dirt and reduce water marks. The present application does not limit the size of the water droplets in the bubble water.

[0131] If the cleaning device 1 has the cleaning liquid pump 12 and the air pump 13 started, and the water pump 11 is turned off, the second output component 17 can output the cleaning liquid foam to the cleaning brush 18. If the cleaning device 1 has the water pump 11, the cleaning liquid pump 12 and the air pump 13 started, the second output component 17 can output the mixed liquid foam to the cleaning brush 18. The cleaning device 1 is in foam mode. It can be understood that the concentration of the cleaning liquid in the cleaning liquid foam is higher than the concentration of the cleaning liquid in the mixed liquid foam. The user can choose to output the cleaning liquid foam or the mixed liquid foam according to the degree of dirtiness, and the present application is not limited. Compared with liquid, the fluidity of the foam is weaker, so the foam can adhere to the vertical surface or complex surface (such as walls or corners), so that the foam can stay on the dirty surface for a long time, and then dissolve and clean the stubborn dirt. In addition, the output component can accumulate a thicker foam layer on the dirty surface to improve the durability of the decomposition of dirt, thereby improving the cleaning effect. In addition, when the second output component 17 outputs foam, the user can also use the foam to draw different patterns to cover the dirt to improve the fun and visual effect of cleaning.

[0132] If the air pump 13 of the cleaning device 1 is started, and the cleaning liquid pump 12 and the water pump 11 are turned off, the second output component 17 can output gas to the cleaning brush 18, and the cleaning device 1 is in the gas mode, which is used to blow dry the cleaning brush 18, that is, after the cleaning device 1 has finished cleaning the used cleaning brush 18, it can also blow dry the cleaning brush 18 through the gas blown out by the second output component 17 to prevent the cleaning brush 18 from getting damp and moldy. Alternatively, the gas mode can also be used to blow off the crystals formed after the cleaning medium containing the cleaning liquid on the second output component 17 dries, to prevent the second output component 17 from being blocked. Alternatively, the gas mode can also be used to dry the cleaning water marks remaining on the ground or carpet waiting to be cleaned, so as to dry the ground or carpet waiting to be cleaned, and achieve mopping and drying. It can be understood that the output gas can be air or harmless gas such as nitrogen.

[0133] It can be understood that the "electrical connection" mentioned in this application can be understood as a wired signal connection or a wireless signal connection. The wired signal connection includes a wire connection, an optical fiber connection or a power line communication, etc., and the wireless signal connection includes a radio frequency signal, a satellite communication, an infrared communication, a Bluetooth communication, a short-range wireless communication technology, etc., and this application does not impose any restrictions.

[0134] The technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without causing conflicts. The scope of protection of the present disclosure is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure shall be included in the scope of protection of the present disclosure.

Claims

1. A self-cleaning method for a cleaning device, characterized in that: The cleaning device comprises a dirt suction component and a control device, wherein the dirt suction component comprises a sewage tank for recovering dirt, a dirt suction pipe connected to the sewage tank, and a suction device acting on the dirt suction pipe, wherein the control device can control the suction device to generate negative pressure suction in the dirt suction pipe to suck the dirt into the sewage tank through the dirt suction pipe; The self-cleaning method comprises: In response to a self-cleaning mode start-up operation, executing the self-cleaning mode; When the self-cleaning mode indicates that the sewage suction pipe is to be self-cleaned, the suction device is controlled to start and operate alternately at a first power and a second power, so that the cleaning liquid used to clean the sewage suction pipe forms a surge in the sewage suction pipe, and the second power is less than the first power.

2. The self-cleaning method according to claim 1, characterized in that: The suction device has a sewage suction power greater than the first power. The suction device can suck the cleaning liquid into the sewage suction pipe when it is operated at the first power or the second power. The suction device can suck the cleaning liquid into the sewage tank when it is operated at the sewage suction power. The controlling the suction device to start also includes: controlling the suction device to operate alternately at the first power and the second power until a first preset condition is met, and then controlling the suction device to operate at the sewage suction power so that the cleaning liquid is sucked into the sewage tank.

3. The self-cleaning method according to claim 2, characterized in that: The controlling the suction device to operate alternately at the first power and the second power until a first preset condition is satisfied comprises at least one of the following: Controlling the suction device to reciprocately suck the cleaning liquid into the sewage suction pipe, and then sucking it into the sewage tank after reaching a preset number of times; Controlling the suction device to reciprocately suck the cleaning liquid into the sewage suction pipe, and then sucking it into the sewage tank after a preset time; The suction device is controlled to suck the cleaning fluid into the sewage tank according to the received closing signal.

4. The self-cleaning method according to claim 1, characterized in that: The cleaning device further comprises a cleaning brush for performing a cleaning operation on the cleaning surface, a first output component for outputting a cleaning medium to the cleaning surface and / or a second output component for outputting a cleaning medium to the cleaning brush, a connecting component in communication with the first output component and / or the second output component, and a conveying component in communication with the connecting component, wherein the conveying component comprises a clean water conveying pipeline and a cleaning liquid conveying pipeline; The self-cleaning mode is executed in response to the start-up operation of the self-cleaning mode, and further includes at least one of the following: When the self-cleaning mode indicates that the first output component is to be self-cleaned, controlling the clean water delivery pipeline to be connected to the first output component to deliver clean water to the first output component; When the self-cleaning mode indicates to self-clean the cleaning brush, at least one of the clean water delivery pipeline and the cleaning liquid delivery pipeline is controlled to be connected to the second output component to deliver clean water and / or cleaning liquid to the second output component.

5. The self-cleaning method according to claim 4, characterized in that: The cleaning device further comprises a driving assembly for driving the cleaning brush to rotate, the driving assembly having a first rotation speed and a second rotation speed less than the first rotation speed, and in the case where the self-cleaning mode indicates that the cleaning brush is to be self-cleaned, further comprising at least one of the following: Controlling the driving assembly to rotate forward and alternately operate the first speed and the second speed; Controlling the driving assembly to reverse and alternately operate the first speed and the second speed; Controlling the driving component to rotate forward at one of the first speed and the second speed, and to rotate reversely at the other speed, and to rotate forward and reverse alternately; The driving component is controlled to operate at one of the first rotation speed and the second rotation speed and to rotate in forward and reverse directions alternately.

6. The self-cleaning method according to claim 4, characterized in that: The delivery component also includes a gas delivery pipeline connected to the connecting component. The self-cleaning mode is executed in response to the start-up operation of the self-cleaning mode, and also includes: controlling the gas delivery pipeline to open after the clean water delivery pipeline and / or the cleaning liquid delivery pipeline are closed, and to be connected to at least one of the first output component and the second output component.

7. The self-cleaning method according to claim 1, characterized in that: The cleaning device further includes a heating component. In response to the start-up operation of the self-cleaning mode, the self-cleaning mode is executed, and the self-cleaning mode is further included: controlling the heating component to heat the cleaning liquid.

8. A self-cleaning method for a cleaning device, characterized in that: The cleaning device comprises a dirt suction component and a control device, wherein the dirt suction component comprises a sewage tank for recovering dirt, a dirt suction pipe connected to the sewage tank, and a suction device acting on the dirt suction pipe, wherein the control device can control the suction device to generate negative pressure suction in the dirt suction pipe to suck the dirt into the sewage tank through the dirt suction pipe; The self-cleaning method comprises: In response to a self-cleaning mode start-up operation, executing the self-cleaning mode; When the self-cleaning mode indicates that the sewage suction pipe is to be self-cleaned, the suction device is controlled to start and operate alternately at a first power and a second power, so that a cleaning liquid used to clean the sewage suction pipe forms a surge in the sewage suction pipe; The second power is less than the first power, the first power of the suction device is less than the sewage suction power, and the sewage suction power is the minimum power of the suction device to suck the cleaning liquid into the sewage tank.

9. A cleaning device, characterized in that: It comprises a sewage suction component and a control device, wherein the control device is used to implement the self-cleaning method described in any one of claims 1 to 8; the sewage suction component comprises a sewage tank for recovering dirt, a sewage suction pipe connected to the sewage tank, and a suction device acting on the sewage suction pipe, and the control device can control the suction device to generate negative pressure suction in the sewage suction pipe to suck the dirt into the sewage tank through the sewage suction pipe.

10. The cleaning device according to claim 9, characterized in that The cleaning device also includes a cleaning brush for performing cleaning operations on a cleaning surface, a first output component for outputting a cleaning medium to the cleaning surface, a second output component for outputting a cleaning medium to the cleaning brush, a connecting component connected to the first output component and the second output component, and a conveying component connected to the connecting component, the conveying component including at least one of a clean water conveying pipeline, a cleaning liquid conveying pipeline, and a gas conveying pipeline.

11. The cleaning device according to claim 10, characterized in that The cleaning device further comprises a driving component for driving the cleaning brush to rotate, and / or the cleaning device further comprises a heating component for heating the cleaning medium output by the conveying component.

12. The cleaning device according to any one of claims 10, characterized in that: The cleaning equipment also includes a foam generator, and the connecting component includes a first control valve and a pipe connector. The control valve is provided with at least three working ports, and the at least three working ports include a first outlet connected to the foam generator, a second outlet connected to the second output component, and an inlet selected to be connected between the first outlet and the second outlet. The first output component is connected to the foam generator, and the clean water delivery pipeline, the cleaning liquid delivery pipeline and the gas delivery pipeline are connected to the inlet of the first control valve through the pipe connector.

13. The cleaning device according to any one of claims 10, characterized in that: The cleaning equipment also includes a foam generator, and the connecting assembly includes a second control valve, a first connecting piece and a second connecting piece. The second control valve is provided with at least three working ports, and the at least three working ports include a first outlet connected to the first connecting piece, a second outlet connected to the second connecting piece, and an inlet connected to the first outlet and the second outlet; the cleaning liquid delivery pipeline is connected to the inlet of the second control valve, the foam generator and the gas delivery pipeline are respectively connected to the first connecting piece, the first output assembly is connected to the foam generator, and the second output assembly and the clean water delivery pipeline are respectively connected to the second connecting piece.

Images